/*
 * Copyright (C) 2009 Leandro de Oliveira Aparecido <lehphyro@gmail.com>
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *         http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.google.code.configprocessor.maven;

import java.io.*;

import org.apache.maven.project.*;
import org.apache.maven.shared.io.location.*;
import org.apache.maven.shared.io.logging.*;

public class RelativeFileLocatorStrategy implements LocatorStrategy {

	private MavenProject mavenProject;
	
	public RelativeFileLocatorStrategy(MavenProject mavenProject) {
		this.mavenProject = mavenProject;
	}
	
	public Location resolve(String locationSpecification, MessageHolder messageHolder) {
		File file = new File(locationSpecification);

		Location location = null;

		if (!file.isAbsolute()) {
			file = new File(mavenProject.getBasedir(), locationSpecification);
		}

		if (file.exists()) {
			location = new FileLocation(file, locationSpecification);
		} else {
			messageHolder.addMessage("File: " + file.getAbsolutePath() + " does not exist.");
		}

		return location;
	}

}
